The table below displays the quarterly sales (in thousands of dollars) of four different products (A, B, C, and D) by a retail company over a two-year period:
Quarter | Product A | Product B | Product C | Product D |
---|---|---|---|---|
Q1 2021 | 120 | 150 | 110 | 90 |
Q2 2021 | 130 | 140 | 115 | 100 |
Q3 2021 | 140 | 160 | 120 | 110 |
Q4 2021 | 150 | 170 | 130 | 120 |
Q1 2022 | 160 | 180 | 135 | 130 |
Q2 2022 | 170 | 190 | 140 | 140 |
Q3 2022 | 180 | 200 | 145 | 150 |
Q4 2022 | 190 | 210 | 150 | 160 |